Buffy the Vampire Slayer: Seeing Red (2002) [Tara Maclay]: Shot in the chest by a stray shot from Adam Busch, while Amber is talking to Alyson Hannigan. (Thanks to Sonya, Pat, and The Jackal)

Taboo (2002) [Piper]: Bludgeoned to death (off-camera) with a rifle butt by Nick Stahl while she's taking a shower. (Thanks to Pat)

Cold Case: Volunteers (2004) [Julia]: Shot to death, along with Garland Whitt, by Riley Schmidt, while sitting in Garland's car. Their bodies are shown afterwards early in the episode, and the murder is shown in flashback later on. (Thanks to Neil)

Intermedio (The In Between) (2005) [Barbie]: Bisected at the waist when the ghosts throw a buzzsaw at her; she reappears as a ghost later on. (Thanks to Matt)

Lovers, Liars, and Lunatics(2006) [Justine]: Accidentally shot in the chest by Mia Cottet. (Thanks to Matt)